Multiply and simplify.
A. 
B. 
C. 
D. 
Answer: A
Mathematics
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Either the dimensions of two matrices or the matrices themselves are given. Find the dimensions of the product AB and the product BA. If either is not defined, say so.A is 2 × 4; B is 2 × 4.
A. AB is 2 × 2; BA is 4 × 4. B. AB is 4 × 2; BA is 2 × 4. C. AB is 2 × 4; BA is 4 × 2. D. AB is not defined, BA is not defined.
Mathematics
Write the indicated term of the binomial expansion.(2x + 5)3; 3rd term
A. 750x B. 60x2 C. 375 D. 150x
Mathematics
Find the union of the sets.{-5, -1, 3, 7} ? {-4, 0, 5, 9}
A. {-1, 0, 3} B. {0} C. {-5, -4, -1, 0, 3, 5, 7, 9} D. ?
Mathematics
Write each whole number in standard form.Thirty-two thousand, nine hundred five
A. 32,950 B. 32,905 C. 320,905 D. 3,295
Mathematics